含PBSu和PBAu链段可降解聚酯酰脲的合成及性能研究*

戴红, 刘跃军, 谭海英, 崔玲娜, 杨伟

Synthesis and Properties of Polyester Ureide Multiblock Copolymers Composed of Poly (butylene-succinate-uera) and Poly (adipate-succinate-uera)

DAI Hong, LIU Yuejun, TAN Haiying, CUI Lingna, YANG Wei

表3 共聚物的DSC数据分析

Table 3 Data for DSC analysis of copolymers

Sample	T_m/^oC		T_c/ ^oC		△H_m/ Jg^-1		△H_c/ Jg^-1		X_c/ %
Sample	T_m-S	T_m-A	T_c-S	T_c-A	△H_m-S	△H_m-A	△H_c-S	△H_c-A	X_c-S	X_c-A	X_c-T
PBSu-PBAu100-0	113.2	-	72.8	-	61.3	-	62.4	-	55.6	-	55.6
PBSu-PBAu90-10	110.3	-	69.9	-	59.3	-	64.5	-	53.8	-	53.8
PBSu-PBAu70-30	109.8	49.8	67.6	24.7	41.7	4.9	41.7	0.8	37.8	5.4	43.2
PBSu-PBAu50-50	109.3	49.4	65.7	24.8	35.6	15.1	37.2	15.1	32.3	16.6	48.9
PBSu-PBAu30-70	108.0	51.1	61.8	25.3	23.4	29.5	34.5	29.3	21.2	32.5	53.7
PBSu-PBAu10-90	106.1	55.4	-	25.8	15.0	34.8	-	39.9	13.6	38.3	51.9
PBSu-PBAu0-100	-	56.0	-	25.9	-	36.2	-	48.6	-	39.8	39.8
PBS	111.5	-	74.9	-	65.6	-	58.6	-	58.5	-	58.5
PBA	-	54.3	-	27.3	-	42.3	-	41.2	-	43.2	43.2